Cultivator.



No. 895,871. PATENTED AUG. 11, 1908.

1 J. 1). LANCASTER.

CULTIVATO'R.

APPLICATION FILED APR.4.1908.

3 SHEETS-SHEET l.

[/VVE/VfOR Alforlzey No. 895,871. PATENTED, AUG. 11', 1908. J. D. LANCASTER.

GULTIVATOR.

APPLIGATION FILED APR. 4. 1908.

3 SHEETS-SHEET 2.

[ VENTOR Afforlley U N I'IJiil) STATES PATNT OFFICE JOHN D. LANCASTER, OF LORENA, TEXAS.

CULTIVATOR.

To all whom it may concern:

Be it known that I, JOHN D. LANCASTER, a citizen of the United States, residing at Lorena, in the county of McLennan and State of Texas, have invented certain new and useful Improvements in Cultivators; and I do hereby declare the followin to be a full, clear, and exact description 0 the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to new and useful improvements in cultivators and comprises various details of construction, combinations and arrangements of parts which will be hereinafter fully described and then specifically defined in the appended claims.

lly invention is illustrated in the accompanying drawings, in which Figure 1 is a side elevation of the cultivator. Fig. 2 is a top plan view. Fig. 3 is a rear elevation. Fig. 4 is an enlarged detail view showing the means for raising and lowering the shaft carrying the cultivator. Fig. 5 is an enlarged detail view of the segment member for holding the cultivator shaft in an adjusted position. Fig. 6 is a detail sectional view through the axle and a block mounted thereon, and Fig. 7 is a detail view of a feature of the invention.

Reference now being had to the details of the drawings by letter, A designates a drop axle having the wheels A mounted thereon. A designates a frame which is mounted upon said axle and has cross-pieces A which have longitudinal grooves formed upon their inner face, as shown clearly in the sectional view, Fig. 6, of the drawings, and CC designate blocks having lateral projections C which are guided in said grooves whereby the blocks may have a play cross-wise upon the frame. Mounted upon said blocks are the braces l/V which are angular, as shown in side elevation, and are integral with the collars E, and W designates a chain which is fastened to an eye E upon the collar E at one end and its other end fastened to an eye E at the forward end of one of the braces W.

BB designate two vertically movable shafts, each guided in a collar E and a block C and the lower end of each shaft has an aperture therein in which the cultivator-carrying bar B is pivotally mounted, said bar Specification of Letters Patent.

Application filed. April 4, 1908.

Patented Aug. 11, 1908.

Serial No. 425,201.

having arms to which the cultivators D are fixed. Each of said shafts B has a series of rack teeth B upon one edge thereof which are adapted to mesh with the teeth N of the disk I pivotally mounted upon a pin N carried by the bracket arm N which rises from the block C.

N is a handle which is fixed to the disk N and aifording means whereby the latter may be rocked upon its pivot. Projecting from the frame of the apparatus is an extension F to which a lever F is pivotally mounted at F and the forward end of the lever F, there being two of said levers as shown, has a sliding pivotal connection with a pin F fixed to a block C whereby the blocks may be moved laterally within their guideways. Antifriction rollers L are mounted between the brace bars W and travel upon a track L of the frame.

A suitable tongue h is provided which has arms h 2 carrying anti-friction rollers M at the ends thereof which travel upon the track M and a suitable double-tree may be pivotally connected to the tongue, as shown clearly in Fig. 1 of the drawings. A seg ment rack K is mounted upon each block C and has teeth K designed to be engaged by the pawl K, one end of which is pivotally connected to a lever J. A pin 0 is passed through registering apertures in the cross piece M and the tongue M and serves to hold the tongue in an adjusted position.

R designates a lug projecting from the bar B, and S is a pawl pivoted upon a pin S carried by the shaft B, and D is a rod connected at one end to the pawl S and its other end to a bolt D adjustably mounted in an elongated slot B, whereby the rod may be held in different adjusted positions. A suitable seat T is provided which is mounted upon the arm T secured preferably at one side of the frame of the apparatus.

In operation, when it is desired to move the plows from one side of the row to the other, the lever F attached to one block or iiie. Qtl1erIC i11ay be swung upon .its pivot, thereby throwing the cultivator to the right left. In the event of an obstruction coming in contact with the cultivator, it will be thrown rearward and the lug upon the bar B will tilt the pawl S pulling down the bar B.

From the foregoing, it will be noted that, by the provision of the device as shown and described, a simple and efficient apparatus is afforded whereby the cultivator plows may be thrown laterally or allowed to yield when they come in contact with an obstruction,

such as a stone or stump, without any injury to the various parts of the apparatus.

l/Vhat I claim to be new is:

1. A cultivator having a suitable axle with wheels thereon, a frame upon the axle provided with transverse grooved ways, blocks mounted to slide in said grooved ways, means for moving the blocks in said guideways, a vertically movable shaft mounted in each of said blocks and having teeth upon the edge thereof, a rack disk pivotally mounted upon the frame and having teeth in mesh with the teeth of said bar, as set forth.

2. A cultivator having a suitable axle with wheels thereon, a frame upon the axle provided with transverse grooved ways, blocks mounted to slide in said grooved ways, means for moving the blocks in said guideways, a vertically movable shaft mount ed in each of said blocks and having teeth upon the edge thereof, a rack disk pivotally mounted upon the frame and having teeth in mesh with the teeth of said bar, a movable collar upon the shaft B, brace bars mounted upon each block and connected to said collar, chain connections between the collar and the ends of the bars upon said block, a movable cultivator mounted upon each shaft, and means actuated by the movement of the cultivator to actuate said shaft, as set forth.

3. A cultivator having a suitable axle with wheels thereon, a frame upon the axle provided with transverse grooved ways, blocks mounted to slide in said grooved ways, means for moving the blocks in said guideways, a vertically movable shaft mounted in each of said blocks and having teeth upon the edge thereof, a rack disk pivotally mounted upon the frame and having teeth in mesh with the teeth of said bar, a movable collar upon the shaft B, brace bars mounted upon each block and connected to said collar, chain connections between the collar and the ends of the bars upon said block, a pivotal bar mounted upon said shaft, cultivators secured to said bar, a lug upon said bar, a pivotal pawl adapted to be tilted by said lug, and a rod connected at one end to said pawl and its other end to said shaft, as set forth.

4. A cultivator comprising an axle with wheels thereon, a frame upon said axle having transverse grooved ways, a block movably held in said guide ways, a vertically movable shaft passing through said blocks and having a cultivator at the lower end thereof, brace bars fastened to said blocks, a collar to which said brace bars are fastened and through which said shaft has a play, connections between said collar and the ends of the brace bars, anti-friction rollers carried by the brace bars, and a track upon the frame and upon which said rollers are mounted, as set forth.

5. A cultivator comprising an axle with wheels j ournaled thereon, a frame upon said axle and having transverse grooved ways therein, blocks having lateral projections engaging said grooved ways, means for moving the blocks, a shaft movably mounted in each block and provided with teeth upon the edge thereof, a pivotal segment disk having teeth engaging the teeth of the shaft, a handle upon said disk, a collar through which said shaft passes, brace bars mounted upon said block and fastened to said collar, chain connections between said collar and the ends of said bars, a pivotal bar mounted in an opening at the lower end of said shaft, cultivators upon arms of said bar, a lug upon the latter, a pivotal pawl mounted upon said shaft, a spring-pressed dog mounted upon said segment disk, and a stationary segment disk upon the block adapted to be engaged by said spring-actuated dog, as set forth.

In testimony whereof I hereunto aflix my signature in the presence of two witnesses.

JOHN D. LANCASTER.

Witnesses E. B. LANCASTER, NEWTON S. MoBRAYnR. 

